Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956729 | Video signal preamplifier circuit | Tomishige Yatsugi, Hiroshi Toeda, Tadashi Takamiya, Norio Minami | 1990-09-11 |
| 4847742 | Multi-channel inverter circuit | Shin-ichi Ohashi | 1989-07-11 |
| 4774598 | Slow-motion device of magnetic recording and reproducing apparatus | Masataka Sekiya, Hideo Nishijima, Kaneyuki Okamoto, Eiichi Funaki | 1988-09-27 |
| 4757394 | Auto-tracking apparatus of a magnetic recording/reproducing apparatus | Kaneyuki Okamoto, Hideo Nishijima | 1988-07-12 |
| 4737864 | Still picture recording system with noise detection and frame counting during shift from reproduction of picture in motion to reproduction of still picture including an intermediate slow motion mode | Masataka Sekiya, Hideo Nishijima, Kaneyuki Okamoto, Fumiaki Fujii, Katsumi Sera +1 more | 1988-04-12 |
| 4724407 | Integrated filter circuit having switchable selected parallel filter paths | Kuniaki Miura, Yoshinori Okada, Mitsuru Kudo, Takashi Kubota | 1988-02-09 |
| 4713700 | A recording circuit having means to automatically set the recording current of a magnetic recording head | Kazuyoshi Kuwahara, Kuniaki Miura, Kenji Kano | 1987-12-15 |
| 4691246 | Apparatus for multiplex recording and reproduction of audio and video signals | Kuniaki Miura, Yoshinori Okada, Susumu Otsuka | 1987-09-01 |
| 4682096 | Switching regulator system for a motor driving circuit | Hideo Nishijima, Takayasu Ito | 1987-07-21 |
| 4672468 | Magnetic recording apparatus with recording of first and second sound signals | Yoshinori Okada, Hisaji Watanabe, Hideo Yoshida | 1987-06-09 |
| 4667120 | Integrated filter circuit with variable frequency characteristics | Yoshinori Okada, Kuniaki Miura, Kenji Kano | 1987-05-19 |
| 4667168 | Integrated circuit with a phase-locked loop | Makoto Shiomi, Kuniaki Miura, Eiji Moro, Shigeaki Kanenari | 1987-05-19 |
| 4651067 | Apparatus for driving brushless motor | Takayasu Ito, Hideo Nishijima, Yoshio Fujimori, Yasunori Kobori | 1987-03-17 |
| 4647960 | Vertical contour emphasis de-emphasis circuit | Kuniaki Miura, Yasufumi Yunde, Kazunori Kotani, Kenji Kano | 1987-03-03 |
| 4613914 | Auto-tracking method and apparatus of a magnetic recording/reproducing apparatus | Yasunori Kobori, Hideo Nishijima, Kaneyuki Okamoto, Katsuhiko Goto, Takashi Takahashi | 1986-09-23 |
| 4607293 | Magnetic recording and reproduction system | Yoshinori Okada, Kuniaki Miura | 1986-08-19 |
| 4605901 | Frequency-voltage converter | Yasunori Kobori, Hideo Nishijima, Yoshinori Masuda, Norihisa Yamamoto | 1986-08-12 |
| 4591924 | Multiplex magnetic recording and reproduction system | Kuniaki Miura, Yoshinori Okada, Teizo Tamura | 1986-05-27 |
| 4591798 | FM signal demodulation circuit | Kuniaki Miura, Yasunori Kobori, Makoto Shiomi, Kenji Kano | 1986-05-27 |
| 4590438 | Bipolar transistor circuit with FET constant current source | Yasunori Kobori, Hideo Nishijima | 1986-05-20 |
| 4543516 | Speed and phase control system | Yasunori Kobori, Kaneyuki Okamoto, Masataka Sekiya, Hideo Nishijima, Kenji Kano +1 more | 1985-09-24 |
| 4521750 | Characteristic switching circuit | Kazuyoshi Kuwahara, Keiichi Itoigawa, Yasunori Kobori, Hideo Nishijima | 1985-06-04 |
| 4518901 | Motor control apparatus | Yasunori Kobori, Hideo Nishijima, Yoshinori Masuda | 1985-05-21 |
| 4503369 | Power supply for plural brushless DC motors | Hideo Nishijima, Tsunehiko Teshima, Yasunori Kobori, Takayasu Ito | 1985-03-05 |
| 4494056 | Motor driving circuit | Hideo Nishijima, Katsumi Sera, Yasunori Kobori | 1985-01-15 |